The composite materials reinforced with fiberglass and ceramic powder. What are the applications of this matrix?
the erosion wear appears in case solid particles are loaded in a fluid (gas or liquid), for your composite material the erosion test is very important because this composite materials are used mainly in the aerospace application (body of airplane) and these planes go through dusty environmental with high velocity. And many erosion case studies were recorded in this concern.
Erosion test are generally carried out on coated surface to ensure the erosion resistance when it used with fluid such as in turbine blades.
In your case it depends, i think as it is a reinforced composite is and the probability of the porosity is higher which it gives you negative results so you have to be careful and decide your test on the basis of field of application.
The new technology tries to replace metallic materials by nonmetallic materials especially in pipes, therefore it's important to study the erosion of nonmetallic materials to estimate their erosion resistance for conveying oil and waste waters.
First you must define the application in which the part will be used in. Second you must define the environment in which this part will be used( your test will be carried out in wet or dry test). Third, the test temperature.Fourth please kindly read the ASTM Volume 03.02 Corrosion of Metals; Wear and Erosion
thank you for your answer Mohamed ibrahim abd aal the application was in wet test ,the temperature was at room temperature .the application in helicopter or military cars .
Dear Dr. Al-Zubaidi:
Typically, fiber glass reinforced with ceramic fibers or sometimes particles (ceramic powder) can be applied in high performance material.
In a general way, this composite is combined with another materials (epoxidic and carbon fiber structures), sometimes in a symmetric arrangement, but it is possible an asymmetric packing of layers, specific laminates in a broad sense.
Taking in account great dimension, thermal processing (cure of resins) and vacuum, all parameters fundamental, the typical application are aerospatial, militaries as: radomes, tubes, advanced armour (actually several layers in a non rigid configuration are preferred) propellers for ships, blades for helicopters and pipe lines.
In a great part of applications as blades and propellers the composite material will be shift at great velocity in a fluid, in another part the fluid will be shift with great velocity in contact with composite materials. Both events are similar when deleterious effects are further considered.
In above sense, erosion wear are necessary. It is interesting to consider another type of erosion stemming of very fast displacement of a body in a fluid or fluid at around the body. As examples, boat propeller in a boat or ship of high performance, yet blades in helicopter where a feature it is velocity, also fluid in a pipeline with abrupt change of it diameter. In this system containing fluids, the wear tends to protect the structure of a phenomenon called cavitation-corrosion, as an example. Seems that very fast rate of rotation of blades (helicopters) and props of airplane leads to strong rates of compression and decompression at around of structure, which can reach strong mechanical vibration with some similar results to cavitation-corrosion phenomenon.
The wear can be engineered to have dispersed very hard particles, as industrial diamond, to improve or give a scratch resistant surface.
Kind regards
Marcos Nobre
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